Home / 90,516.63-135,731.10-53,088.96

Finding the Fourth Proportional to 90,516.63, 135,731.10 and 53,088.96

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Solution

The fourth proportional to 90,516.63, 135,731.10 and 53,088.96 is: 79,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,516.63 : 135,731.10 = 53,088.96 : x
  2. Step 2: Convert to fraction form
    90,516.63/135,731.10 = 53,088.96/x
  3. Step 3: Cross multiply
    90,516.63x = 135,731.10 × 53,088.96
  4. Step 4: Simplify right side
    90,516.63x = 7,205,822,938.66
  5. Step 5: Solve for x
    x = 7,205,822,938.66/90,516.63
  6. Step 6: Final answer
    x = 79,607.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.